A leak that has to be fixed on both sides of dry cargo ship (4)
I believe the answer is:
drip
'a leak' is the definition.
(I've seen this before)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for drip that I've seen before include "See 6" , "Fall or let fall in drops" , "weak character" , "Wimp" , "Fall in small droplets as from tap" .)